Acetylene-gas generator



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PATENT OFFICE.

LORENZ DIETSOH, OF IVAPAKONETA, OHIO, ASSIGNOR OF ONE-HALF TO FRANZKREIN, SR., OF ST. MARYS, OHIO.

ACETYLEE-GAS GENERATOR.

SPECIFICATION forming part of Letters Patent No. 750,618, dated January'26, 1904.

Application filed April 23, 1903. Serial No. 153,980. (No model.)

To @ZZ whom, it party con/cern:

Be it known that I, LORENZ DIETsoH, a subject of the Emperor of Germany,residing at wWapakoneta, in the county of Auglaize and State of Ohio,have invented certain new and useful Improvements in Acetylene-GasGenerators; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in IO the art to which it appertains to make and use the same.

My invention relates to a novel construction in an acetylene-gasgenerator, the object being to provide a compact, cheap, and eiiicientI5 device of this character which can be made in` portable as well aslarge sizes; and it consists in the features of construction andcombinations of parts hereinafter fully described and claimed. i

2O The accompanying drawing, illustrating my invention, shows agenerator in central vertical section.

My said generator consists of a central cylindrical chamber A, closed atits lower end and open at its upper end. Ooncentric with said chamber Ais a cylinder B of larger diameter, and to the upper end of same anannular water-chamber C is secured, which communicates with the upperend of the chamber A by means of the U-shaped pipe D,connected with thebottom of said chamber C and terminating in said chamber A at'a pointhigher than the normal water-level in said waterchamber C.

The annular space or chamber E between the chamber A and cylinder Bserves as an air and water chamber and is divided into two parts bymeans of a cylindrical partition-wall F, having a serrated lower end andprovided 40 at its upper end with an internal annular iiange secured tothe outer wall of said chamber A, thus forming an inverted annularcompartment H, connected by a pipe I, entering through said flange Gr,with the water-chamber O above the water-level in the latter, a valve Jbeing interposed in said connection.

Below the water-chamber C is a second and larger annular water-chamberK, connected by means of a duct L with the lower end of the annularchamber E, the latter having connection with the compartment Hthroughthe recesses in the lower serrated end of said partition-wall F. Thesaid compartment H communicates with the outer air by means of a pipe M,entering said compartment adjacent its lower end. The said annularchamber E is sealed at its upper end by means of an annular plate N,which is provided with a groove to receive a rubber washer O and towhich U-shaped arms P are pivotally secured at one end, the said arms Pcarrying set-screws Q, in their free ends, which are adapted to bearupon the annular flange of a cover R and force same down upon the washerO to seal the chamber A. From the said cover apipe S leads to the pointof consumption of the gas. To the lower face of said cover a perforatedsleeve is secured, which surrounds the gas-outlet and which carries aninverted conical hood T, partially covering the chamber A. The saidchamber A is adapted to receive the carbidbucket U,.provided in itsbottom with an opening for the passage of said pipe D. The saidwater-chamber O is filled through the spout V, sealed by the plug W,while the chamber K is filled through the spout X, closed by a plug Y,having an air-vent Z therein.

The operation of my said generator is as follows: The carbid-bucket Vand the waterchambcrs O and K having been filled and the SO cover placedin position to seal the chamber A, the valve J is opened. Thewater-level being higher in chamber K than in the compartment H, the aircontained in lthe latter above the water-level therein will obviously 85 be under pressure corresponding with the difference in thewater-levels in said chambers K and H. By opening the valve J thispressure is exerted on the water in chamber O, thereby causing anoverflow at the mouth ot' 90 pipe D into the chamber A, said waterflowing upon the carbid in the bucket U and causingw generation of gas.Such generation causes an increase in pressure in thegenerating-chamber, which acts to cause the water in the pipe D torecede an d raises the water-lever in chamber O, thereby in turn forcingthe air in said chamber to recede into\thc compartment and depressingthe water-level therein and raising the water-level in chamber K.

Should the generation of gas be excessive, the latter will obviouslyforce its way into chamber G through said pipe D and thence into thecompartment H and by depressing the water-level in the latter below themouth of the pipe M will escape through said pipe, which serves as theblow-0H or safety valve.

As the generated gas passes out of the generating-chamber to the pointof consumption of the gas the pressure is gradually released in saidchamber until the water again overflows from said pipe D and producesfurther generation. This operation is repeated until the carbid isexhausted.

It will be noted that I employ two separate and distinct bodies ofwater, one of which is used only for the purpose of generating gas andthe other of which determines the normal gas-pressure and is notdiminished in volume during the operation of the generator. This is veryadvantageous in maintaining constant gas-pressure, whereas in mostgenerators of this type the pressure is varied by the gradualconsumption of a part of the water controlling the pressure.

By closing the valve J the further admission of water to thegenerating-chamber is obviously prevented.

I claim as my inventionl. In an acetylene-gas generator, the combinationwith the generating-chamber, and an annular chamber surrounding same, ofa feedwater chamber, feed water connection between said feed-waterchamber and said generating chamber above the normal waterlevel in theformer, a pipe connecting the upper end of said feed-water chamber withthe upper end of said annular chamber, a second water-chamber, and apipe connecting the lower end of the latter with the lower end of saidannular chamber, substantially as and for the purpose set forth.

2. In an acetylene-gas generator, the combination with thegenerating-chamber and a feed-water chamber, and a pipe connecting saidfeed-water chamber with said generatingchamber at a point within thelatter higher than the normal water-level in said feed-water chamber, ofan air-chamber, a pipe connecting same with said feed-water chamberabove the water-level in the latter, a second waterchamber, andconnection from the lower end of same to the lower end of saidair-chamber, substantially as and for the purpose set forth.

3. In an acetylene-gas generator, the combination with agenerating-chamber, a waterfeed chamber connected therewith, anairchamber, a pipe connecting said air-chamber with said water-feedchamber, and a valve interposed in said connection, of apressurecontrolling water-chamber, and connection between saidwater-chamber and said airchamber to compress the air in the latter,whereby when said valve is opened said pressure will be communicated tosaid water-feed chamber to cause the latter to feed water to the carbidcontained in the generating-chamber.

4. In an acetylene-gas generator, the combination with thegenerating-chamber and a feed-water chamber, of a second water-chamber,a fluid-pressure chamber interposed between said two water-chambers andconnected at its upper end with said feed-water chamber above the,water-level of the latter, a valve interposed in said connection, andconnection between said fluid-pressure chamber and said secondwater-chamber below the water-level in the latter, substantially as andfor the purpose described.

In testimony whereof I aiiX my signature in presence of two witnesses.

LORENZ DIETSCH.

fitnessesz RUDOLPH IVM. LoTz, ERwIN J. LoTZ.

